Jason Glenn labels well watersamples to be tested for pesticides, arsenic and uranium at the Heath Department Laboratory at Government Center in Stamford, Conn., on Tuesday, March 18, 2014.
Photo: Lindsay Perry

Lab Technician Kori Jennings adds media to a water sample at the Heath Department Laboratory at Government Center in Stamford, Conn., on Tuesday, March 18, 2014. The sample is incubated overnight, and if total coliform bacteria is present will turn yellow. After a positive total coliform test, the water is then tested under ultra violet light for E. coli.
Photo: Lindsay Perry

Director of Health and Social Services Anne Fountain, right, and Laboratory Director Jim Federici, left, talk about testing well water for uranium at Government Center in Stamford, Conn., on Tuesday, March 18, 2014.
Photo: Lindsay Perry